Wireless network has now become the most common form of internet. The use of wireless internet either at home or public places can sometimes lead to slow internet speed and increased processing time as more than one device is tapped into a network. As more and more devices are attached to a single network the airwaves can get clogged which make it difficult to stick to a reliable signal. At this juncture, the question of using waves other than radio waves to surf the internet rose as it was felt that radio waves were completely exploited.
A German physicist, Dr Harold Haas, proposed a solution called ‘Data through Illumination’ in which he used fiber optics to send data through an LED light bulb. This D-Light is more powerful and can produce data rates faster than ten mega bits per second. Hence, this laid as the foundation for the development of Li-Fi technologies which enable us to transmit data through light to our devices like laptops, mobile phones and tablets.